JP2779163B2 - Fire reporting equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an automatic fire alarm system, which detects the occurrence of a fire when it detects the occurrence of the fire, such as a fire department or a central management center provided at a remote location. The present invention relates to a fire alarm system that issues an alarm to a destination via a public line such as a telephone line. [Prior art and its problems] There is known a reporting facility for transmitting a fire signal from an automatic fire reporting facility such as a fire receiver to a fire department or the like via a telephone line or the like. In such a reporting facility, since the installation environment of the detector is poor, in a building or the like where the fire reporting facility such as the installed receiver always generates a non-fire report, the manager turns off the power of the fire reporting facility such as the receiver. It is often seen that the vehicle is turned off or the main bell is stopped. If the receiver is not operated in this way, the detection is delayed at the time of an actual fire, and the damage is increased. In addition, since automatic notification to a fire station or the like cannot be performed by turning off the power, there is a problem that even if a fire occurs, the fire station does not have any means for checking. [Means for Solving the Problems] Therefore, an object of the present invention is to provide not only a fire signal of a fire alarm system but also a fire in which a signal of a main bell stop and power off is transmitted via a telephone line or the like. It is to provide a reporting facility. Specifically, according to the present invention, when the fire alarm system (for example, a receiver) detects the occurrence of a fire, the fire occurrence is reported to a predetermined report destination at a remote location via a public line or the like. In the fire alarm system, monitoring means for monitoring a stop state of an audio device of the fire alarm system and a disconnection state of an AC power supply; a maintenance means having a set time for maintenance; and an operation of the maintenance means being performed within the set time. During the period, the monitoring means prohibits the occurrence of the fire, the detection of the stop state and the disconnection state, and when the operation of the maintenance means exceeds the set time, the monitoring means sets the fire occurrence, the stop state and Enable the detection of the disconnection state, when the monitoring means detects the stop state or the disconnection state,
And notifying means for notifying the notification destination of an abnormality of the fire alarm device via the public line or the like. According to a preferred embodiment of the present invention, the monitoring means includes a maintenance means, and while the maintenance means is operating, detection of the occurrence of the fire, the stop state, and the disconnection state is prohibited. In addition, when the operation of the maintenance means has passed a set time for maintenance, the monitoring means enables detection of the occurrence of the fire, the stop state, and the cutoff state. [Operation] The conventional function of the fire alarm system for notifying the occurrence of a fire includes a main sound device (provided in or near the fire receiver), which is a major obstacle to fire notification to buildings and monitoring personnel and evacuation guidance. Or, stop the sound equipment such as the district sound equipment (provided in each warning area to notify the occurrence of fire) and fire monitoring is not possible (when there is no built-in power supply [rechargeable battery]) or fire monitoring becomes impossible When there is a fear of power off (there is a built-in standby power supply), the monitoring means detects each state, and the reporting means has a function to report the detected contents to the report destination such as a fire department. . According to a preferred embodiment, a maintenance means for setting a maintenance mode in which the time is limited by the timer means is provided. During this time, even if power off or sound stoppage is performed for maintenance or a test, the contents are not reported. However, when the maintenance mode time elapses when the power-off or the cancellation of the sound stop is forgotten, the fact is automatically notified. Therefore, unnecessary notifications are not sent during maintenance and testing,
It is possible to report a state in which monitoring and notification cannot be performed due to forgetting to recover after maintenance and testing. Throughout this specification, “reporting” means notifying the state of the receiver to a fire department or the like via a telephone line or the like, and “reporting” means that a monitor or a building located at the receiver installation location It means to let people know. Embodiment An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a system diagram showing a fire alarm system according to one embodiment of the present invention, in which RE is a receiver and ND is an alarm device. The notification device ND receives a signal indicating the occurrence of a fire from the receiver RE, a signal indicating a main sound stop, a signal indicating a local sound stop, a signal indicating a power-off, and the like. A notification device for notifying a central center or the like of the occurrence of a fire or the like is shown. In the notification device ND, the MPU 1 is a microprocessor, and the ROM 1 is a read-only memory for storing a program shown in the flowcharts of FIGS. 3A to 9 described later. It controls the operation of the determination control unit of the notification device ND, which determines whether or not to report the received content via a telephone line or the like. The ROM 2 is a read-only memory for storing a program shown in the flowchart of FIG. 10 described later, and the program controls the operation of the transmission unit TX also described later. RAM1 is a random access memory for work, RAM2 is a random access memory for storing messages to prevent double transmission, and RAM3 is a counter for a timer. In this example, A, B, Four counters C and D are set. The RAM 4 is a random access memory for storing information for temporarily storing report information. IF1 is an interface for receiving information from the fire receiver RE described later, IF2 is a transmission control interface, IF3 is a counter interface, and DIP1 is a time required for maintenance or testing, that is, a maintenance time. Dip for maintenance time setting to set
During the maintenance time set by the maintenance time setting dip switch, even if information that requires transmission to the fire department or the like is input from the fire receiver RE via the information receiving interface IF1, it is prohibited. Is done. DIP3 is a dip switch for setting a main sound stop allowable time. Here, the main sound stop allowable time refers to the main sound stop allowable time even when a signal indicating the main sound stop is input via the information receiving interface IF1. This is a time period during which transmission to a fire department or the like is not performed unless input is continued beyond the allowable sound stop time. This prevents erroneous transmission when the switch is operated by mistake. DIP4 is a dip switch for setting the permissible time of the area sound stop. Here, the permissible time of the area sound stop means that even if a signal indicating the stop of the area sound is input, it is input exceeding the permissible time of the area sound stop. This is the time when transmission to a fire department or the like is not performed unless it is continued. DIP5 is a dip switch for setting a power-off allowance time, and here, the power-off allowance time is defined as long as a signal indicating power-off is input as long as the signal does not continue to be input beyond the power-off allowance time. This is a time when transmission to a fire department or the like is not performed. The TX is a transmission unit, and is composed of a storage unit that stores transmission destination numbers and transmission contents, an automatic dial unit, a call state detection unit, a voice synthesis unit, a tape recorder, and the like. The fire receiver RE is shown connected to a fire detector DE provided in each fire alert area and a district bell ZB as an area sound device. The fire receiver RE has been modified from the usual one for use by connecting to the notification device ND, and an example of its internal configuration is shown in FIG. In Figure 2, TRF transformers, RFC rectifying circuit, CVC constant voltage circuit, N ₁ ～Nn is one provided per fire detector group of each section, one of the respective sensor groups The regional relays, n _{11 to} n ₁₄ ,..., Nn _{1 to} nn _{4, which} are arranged so that those corresponding to the group of detectors operate when the detectors operate, make up the regional relays N _{1 to} Nn. contacts, F, when one of the district relay is operated, a fire relay, f ₁ ~f ₃ which is operated by the corresponding contacts of the make contact n ₁₂ ~nn ₂ is a make contact of the F relay, In particular, contacts
f ₃ is a contact for transmitting a fire signal to the notification device ND. MB is mainly bell, ZB as a main sound apparatus is ringing or energized by closing the make contact f ₁ when the F relay is activated, be a zone bell as local sound device provided in each district by closing the corresponding contact of the make contact n ₁₃ ~nn ₃ when one of the district relay is operated, one provided on the section of the corresponding is ringing or energized. Note that the main bell MB and the district bell ZB can also be emergency broadcast devices. Lf, when the N relay ie district relay is operated is F relay operates, the fire lamp is lighted by make contact f _2, L ₁ Ln is make contact n of when one of the district relay is operated _When the corresponding contacts among _{14 to} nn ₄ are closed, the fire area indicator lights that are provided for the corresponding area are turned on, and SW ₁₁ and SW ₁₂ are operated in conjunction with a recovery switch (non-locking type). ), and, SW ₁₁ is restored, i.e. a self-holding release of a fire, SW ₁₂ is for contact signal sent to inform the call device ND that has been restored. SW ₂₁ and SW ₂₂ are main sound stop switches (lock type) operated in conjunction with each other, and SW ₂₁ is a main sound device, that is, a main bell.
The switch ₂₂ is for sending a contact signal for notifying the notification device ND that the main bell MB has been stopped. SW ₃₁ and SW ₃₂ are linked sound stop switches (locking type) that are operated in an interlocking manner. SW ₃₁ is used to stop the sound of the district sound device, ie, the district bell ZB, and SW ₂₂ is notified that the district bell ZB has been stopped. It is for sending a contact signal to inform the device ND. TR is a power-off detection relay. Although this power-off detection relay TR is provided on the output side of the rectifier circuit RFC in FIG. 2, the primary or secondary side of the transformer TRF,
Alternatively, it can be provided on the output side of the constant voltage circuit CVC. tr is a make contact of the power-off detection relay TR, and is for sending a contact signal for notifying the notification device ND that the power is off. SW ₄ is a maintenance switch (lock type) that is operated during maintenance or testing, and is for sending a contact signal for notifying the notification device ND that maintenance is being performed. The switch SW ₄ is in the receiver RE no may be provided to the reporting device ND. The above second of the components shown in FIG, improved point to be applied to the present invention, the power interruption detection relay TR, make contact tr of the relay TR, recovery switch SW _12, the main sound stopping switch SW ₂₂ , a local sound stop switch SW ₃₂ , and a maintenance switch SW ₄ are provided, and the other configuration is the same as that of the conventional receiver. Hereinafter, the operation will be described with reference to the flowcharts of FIGS. 3 (1) to 10. FIGS. 3 (1) to 9 show flowcharts of the main program and sub-program of the discrimination control unit of the notification device ND, and FIG. 10 is a flowchart for explaining the operation of the transmission unit. 3 (1) and (2), after the initial setting (step 301), the contents of the information receiving interface IF1 are read (step 302), and whether the contents are restored (step 303) or a maintenance signal (step 303). 304), fire signal (step 306), main bell stop (step 307), district bell stop (step 309), and power off (step 311). And recovery is, district relay N ₁ ~Nn of the receiver RE by fire, etc.
Equal to is operated self-holding, the contact signal due to the recovery switch SW ₁₁ of the non-locking is operated or depressed as shown in FIG. 2, a state in which they are released. Therefore, when it contact signal from the switch SW ₁₂ to interlock operating and recovery switch SW ₁₁ is entered recovery is determined (YES switch 303), the recovery process shown in FIG. 9 (step 900) is Done. In the recovered state, there is no content to be reported via the public line. Therefore, in the recovery process of FIG. 9, first, the contents of the notification storage RAM 2 and the information storage RAM 4 are cleared (step
901) Then, the contents of the counters A, B, C, and D of the RAM 3 are set to 0 (step 902), and thereafter, returning to the flowchart of FIG. 3A (step 903), waiting for time (step 313). Followed by the information receiving interface IF1
Then, the process proceeds to the next reading operation (step 302). Next, maintenance means a state in which the maintenance switch SW ₄ is operated by a maintenance person or the like for maintenance.
If the contact signal is discriminated to be entered is a maintenance state from W ₄ (YES in step 304), the maintenance process shown in FIG. 4 (step 400) is performed. In the maintenance processing of FIG. 4, first, the content of the counter A in the RAM 3 is incremented by one (step 401), and the maintenance time setting dip
Maintenance timer set time set in switch DIP1
T ₁ is read (step 402), the contents of the counter A is or not larger than the timer set time T ₁ is determined (step 403). If A is T ₁ following (step 403 N
O), this is within the time set for maintenance, and therefore steps 411, 313, 302, 3
It loops through loops 03, 304, 401, and 402. When the maintenance treatment maintenance switch SW ₄ to exit is released (NO in step 304), the content of the counter A 0
Is set (step 305), and the process proceeds to the next process. Also, if the maintenance switch SW ₄ is forgotten to be released after maintenance is completed, for example, at step 401 in the above-described traveling loop, A
Is gradually being one by one increment, then the count value A exceeds the time T ₁ that is set for maintenance (YES in step 403), whether the fire signal is the input (step 40
4) It is determined whether the main bell stop has been input (step 405), the district bell stop has been input (step 406), or the power has been turned off (step 407). If any of these are entered, the corresponding fire action 500, primary bell shutdown action 600, district bell shutdown action 700, or power off action
One of 800 is done. If none of them has been entered, if the information WI ₁ indicating that the maintenance switch is on is not yet reported (NO in step 408), the information WI ₁ is reported to the fire department or the like. to thereby set the information recording RAM 4 (step 409), the notification storing RAM2 stores the notification of WI _1, and generates an interrupt to activate the transmission task shown in FIG. 10 (step 410). Information WI ₁ set in the information storing RAM4 is reported to the fire department or the like via a public line or the like by the control of the transmission unit to be described later in FIG. 10. Then, returning to FIG. 3, after waiting for a time (step 313), the content of the information receiving interface IF1 is newly read (step 302). Fire and make contact f ₃ of FIG. 2 is operated by generating, from the contents of the information reception interface IF1, the the it is determined (YES in step 306), the fire process 500 shown in FIG. 5 Done. In FIG. 5, it is first determined whether or not a fire notification WI ₂ has been made. If no notification has been made (NO in step 501), the WI ₂ information is stored in the information storage RA.
Set to M4 (step 502) and RAM for message storage
2 storing the information WI _2, and generates an interrupt to activate the transmission task (step 503), then returns to FIG. 3, time waiting after (step 313), the information reception interface IF1 Move on to the next content determination. If the receiver main sound stopping for stopping the main bell MB in RE switch SW ₂₁ is not operated (step
NO 307), the count value of the counter B is set to 0 (step 308), the process proceeds to the next process, if the main sound stopping switch SW ₂₁ is operated, the switch SW in conjunction with the switch SW _{21 When} it is determined that the contact signal of No. ₂₂ has been input to the information receiving interface IF1 (Step 307).
YES), the main bell stop processing 600 shown in FIG. 6 is performed. In Figure 6, first, the main bell information WI ₃ indicating that it is stopped is determined whether the already Problem, if not yet notified (NO in step 601), because of the time count The content of the counter B is incremented by one (step
602). Next, read the timer setting time, i.e. the main sound stopping permissible time T ₃ set in the DIP switches DIP3 for the main sound stopping permissible time set (step 603),
If the content of the counter B is the permissible time T ₃ below (step 60
4 (NO), returning to FIG. 3 and repeating the loop from steps 313 and 302. Thereafter, continue to continue the main sound stopping state, the count value B is greater than a predetermined time T ₃ (YES in step 604), the sets information WI ₃ in the information storing RAM 4 (step 605), WI ₃ Is stored in the notification storage RAM 2 and an interrupt for activating the transmission task is generated (step 606). Thereafter, the content of the counter B is set to 0, and the process returns to FIG. 3 (step 608). When the local sound stop switch SW ₃₁ for stopping zone bell ZB in the receiver RE has not been operated (NO in step 309), the count value of the counter C is set (step 310) to the next processing proceeds No it is, if local sound stop switch SW ₃₁ is operated and the the contact signal of the switch SW ₃₂ in conjunction with the switch SW ₃₁ is inputted to the information receiving interface IF1 is determined (in step 309
YES), the district bell stop processing 700 shown in FIG. 7 is performed. In FIG. 7, first, it is determined whether or not the information WI ₄ indicating that the district bell ZB is stopped has been notified,
If the notification has not yet been made (NO in step 701), the content of the counter C is incremented by one for time counting (step 702). Next, read the timer setting time, i.e. the local sound stop permissible time T ₄ set in the DIP switches DIP4 for local sound stop permissible time setting (step
703), if the content of the counter C is permissible time T ₄ or less (NO in step 704), steps 313 and 302 back to Figure 3
Repeat the loop from The stop state of the district sound continues to be continued, and the count value C is incremented by one in the repetitive loop, and thereafter, the content of the counter C is changed to the set time.
Beyond T ₄ (YES in step 704), (step 705) with sets information WI ₄ in the information storing RAM 4, and stored in the notification storage for RAM2 the notification of WI _4, and to start the transmission task An interrupt is generated (step 706), and the content of the counter C is set to 0 (step 707).
Returning to the figure (step 708). When the power-off detection relay TR in the receiver RE has not detected the power-off, and therefore the make contact tr of the relay TR has not output the power-off signal (N in step 311).
O), the count value of the counter D is set to 0 (step 312), and the process proceeds to the next process. If the power-off detection relay TR detects the power-off, the contact tr of the relay TR is output. If it is determined that the power-off signal has been input to the information receiving interface IF1 (YES in step 311), the eighth
A power cutoff process 800 shown in the figure is performed. In Figure 8, first, information WI ₅ indicating the power failure is determined whether the already Problem, if not notified yet (NO in step 801), the counter D for time counting Is incremented by one (step 80
2). Then, the timer setting time, i.e. reads the power failure time allowed T ₅ set in the DIP switches DIP5 for power-off allowable time setting (step 803), compared with the count value D is performed, the count value if D is the permissible time T ₅ or less (NO in step 804), step 3 back to FIG. 3
Repeat the loop from 13 and 302. Continues power-off state, repeat count value D will be one by one increment in a loop, then the contents of the counter D is greater than T ₅ set time (YES in step 804), information in the information storing RAM4
With sets WI ₅ (step 805), stores the notification of WI ₅ to RAM2 information memory, and an interrupt for starting the transmission task generated (step 806), then the contents of the counter D to zero After setting (step 807), the process returns to FIG. 3 (step 808). FIG. 10 performs control to transmit the fire department or the like Figure 4 - Figure 8 information WI ₁ ~WI ₅ is set in the information storing RAM4 in the (occasionally represented by a WI) through a public line, the 3 is a flowchart for explaining the operation of the transmission unit TX shown in FIG. When any information to be transmitted is set in the information storage RAM 4 and an interrupt occurs, the operation starts (step 1000), and the notification information WI is read from the information storage RAM 4 (step 1001). Is determined (step 100
2). Next, a dial circuit is activated for transmission to a fire department or the like via a telephone line or the like (step 1003). When a call is possible (YES in step 1004), the dial circuit is registered in advance in, for example, a tape recorder of the transmission unit TX. Is transmitted. In the transmission of information, first, an address and a building name are transmitted as common contents (step 1005). An example of the information content is as follows. "It's G building. Address, H City, X-cho, Y-chome, is Z address." Next, the information WI ₁ ~WI ₅ corresponding to the determined contents of the information WI
Is transmitted (step 1006). Information WI ₁
To illustrate the ~WI _5, as follows. When the information WI ₃ is set in the information storage RAM 4: "A fire has occurred. A fire has occurred." When the information WI ₃ has been set in the information storage RAM 4: "The main bell of the receiver Is stopped. "When the information WI ₄ is set in the information storage RAM 4:" The district bell is stopped. "When the information WI ₅ is set in the information storage RAM 4:" The receiver is powered off. " Is not supplied. There is a problem with monitoring. "When WI ₁ is set in the information storage RAM 4:" The maintenance switch of the receiver (or the notification device) is on. " Is transmitted a predetermined number of times (YES in step 1007), the corresponding notification information W in the information storage RAM 4 is transmitted.
I is cleared (step 1008), and the interrupt processing ends. In step 1008, the notification information WI of the information storage RAM 4
May be cleared, and the cleared notification information WI may be stored in the notification storage RAM 2. In the above embodiment, the sound stop processing is performed in the sixth step.
Although the case where the main bell stop process 600 shown in the figure and the district bell stop process 700 shown in FIG. 7 are processed separately is shown, the bell stop process may be commonly performed in one process. good. Also, the description has been given of the case where the setting of the permissible time of the main sound stop, the district sound stop, the power supply cutoff, and the maintenance is performed by using the DIP switch, but these settings may be performed by a 10 key or the like. A plurality of allowable times may be set in advance for each of them, and a desired time may be selected from the plurality by using a changeover switch or the like. Further, the notification device may be incorporated in the receiver. [Effects of the Invention] As described above, according to the present invention, the fire alarm system not only reports the occurrence of a fire, but also shuts off the power of the fire alarm system such as a receiver and stops the sound device through a telephone line or the like. Since the notification is made, it is easy for the fire department or other reporting destinations to issue a warning to the manager of the fire alarm facility by telephone, etc., thus preventing a serious accident from occurring. There is. In addition, at the time of maintenance inspection, while prohibiting reporting by operating the maintenance switch,
If the maintenance switch is left unrecovered without being restored after the inspection, a notification that the maintenance switch has been forgotten to be turned off is issued after a certain period of time.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block circuit diagram showing a fire alarm system according to an embodiment of the present invention, FIG. 2 is a circuit diagram showing details of a fire receiver in FIG. 3 (1) and (2) show the first
4 is a flowchart showing a main program of the discrimination control operation of the notification device ND shown in FIG. 4, FIG. 4 is a flowchart showing a maintenance processing program in FIG. 3, and FIG. 5 is a fire processing program in FIG. FIG. 6 is a flowchart showing a main bell stop processing program in FIG. 3, FIG. 7 is a flowchart showing a district bell stop processing program in FIG. 3, and FIG. 8 is a flowchart in FIG. FIG. 9 is a flowchart showing a power-off processing program.
Flow chart showing a recovery processing program in FIG. 3;
FIG. 10 is a flowchart for explaining the operation of the transmitting unit TX of the notification device ND. In the figure, ND is a notification device, ROM1 and ROM2 are read-only memories for storing programs, RAM2 is a random access memory for storing notifications, RAM3 is a random access memory for counters, and RAM4 is for storing information. Random access
Memory, IF1 is the interface for receiving information, IF2 is the interface for transmission control, TX is the transmitter, DIP1 is the dip switch for setting the maintenance time, DIP3 is the dip switch for setting the main sound stop allowable time, and DIP4 is the area sound. dIP switch for stopping permissible time setting, DIP5 the dIP switches for setting the power-off time allowed, RE is the fire receiver, DE is fire detector, N ₁ ~Nn district relays, F is fire relay, MB is Main sound device (main bell), ZB is district sound device (district bell), SW ₁₁ and SW ₁₂ are recovery switches, SW ₂₁ and SW ₂₂ are main sound stop switches, SW ₃₁ and SW ₃₂
Is a district sound stop switch, TR is a power-off detection relay, tr
Is a make contact of the relay TR, and SW ₄ is a maintenance switch.

Claims (1)

(57) [Claims] When the fire alarm system detects the occurrence of a fire, in a fire alarm system that notifies the occurrence of the fire to a predetermined notification destination at a remote point via a public line or the like, the sound device of the fire alarm system is in a stopped state and Monitoring means for monitoring a disconnection state of the AC power supply, maintenance means having a set time for maintenance, and while the operation of the maintenance means is within the set time, the monitoring means sets the fire occurrence, the stop state and the When the operation of the maintenance means exceeds the set time, the monitoring means enables the detection of the occurrence of the fire, the stop state and the cut state, and the monitoring means stops the stop. Notifying means for notifying the notification destination of an abnormality of the fire alarm device via the public line or the like when the state or the disconnection state is detected. 2. 2. The fire alarm device according to claim 1, wherein the monitoring unit determines the stop state or the cut-off state when the stop state or the cut-off state continues for a set time.